Fidget Spinner Toy Bulk Age 3+ for Kids Adults (12 Pack), Metal Tri-Spinner Fidget Set for Stress Relief, Halloween Christmas Party Favors Supplies Goodie Bag Stuffers Classroom PrizesErgonomic Design: The bulk features a triangular structure design that perfectly fits your fingers, making it compact and portable. It also has metal counterweight bearings to increase centripetal force and spin time. High Speed Spinning: With a high speed R188 alloy bearing in the center, which ensures the smoothest rotation and consistency. You'll enjoy endless hours of fun and relaxation with increased centripetal force and spin time. Take It